blip
n. anything quick and insignificant; a onetime thing of little importance.It was nothing, just a blip. The press blew it out of proportion.It wasn't really a fight. It was just a blip.
never mind
phr. “Forget it.”; “It doesn't matter anymore.”Never mind. I forget what I was going to say.Oh, never mind. Nobody really cares anyway.
nothing to write home about
n. something small or inconsequential.I got a little bit of a raise this year, but it was nothing to write home about.The party was nothing to write home about.
piss-ant
mod. insignificant; unimportant.I don't have time for her little pissant problems.Take your piss-ant papers out of here and leave me alone.
small potatoes
n. something or someone insignificant.This contract is small potatoes, but it keeps us in business till we get into the real money.Small potatoes are better than no potatoes at all.
small-time
mod. insignificant; petty.I was in a lot of small-time stuff at home, but never a Broadway hit before.Broadway is not small-time.Max was involved in a lot of small-time crime when he was twelve.